Weather strip



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FRANK nnnsn on mmnnaronrsmmnnso'm, Assroiion 'ro nnnsn viinarnna Patented Se t. 21, 1926.

s'rarr 00., or MINNEAPOLIS, mnnnsom, A CORPORAT1ION ornmasso an WEATHER STRIP.

Application filed September 14, 1925. Serial No.. 56,157.

My present invention is directed to the provision of an improved weather strip for and shrinks.

signed that it accommodates itself ,to the.

sliding window sashes, combining a'flexible and adjustable weather strip with a channel-shaped metal partings'trip. It is wellknown that the wood in sashes warps, swells My weather strip is so clechanging conditions of the sashes without loss of efficiency in preventing passage of air between the sashes and window frame. It is also 'well, known that the usual wooden parting stops, or combinations of wood and metal parting stops, become loose in the frame, permitting-leakage of air'between the stop and the frame. The wooden parting stops are subject to decay, and are often broken or splintered. Practically all metal weather strips on the market today for sliding window sashes are attached to or fitted against the usual wooden parting stop, or some variation of the wooden parting stop, and such weather strips retain the weakness and comparatively short life of the wood stop.

My present invention is designed to entirely eliminate the wooden stop and provide a Weatherstrip of the highest efliciency, ad-

justable to changing conditions of the sashes to which it is applied, and of greater durability than the wooden sashes and frame. Generally stated, the invention consists of v the novel devices, combinations of devices and arrangement of parts hereinafter described and defined in the claims.

.The invention is shown as applied to a vertically movable sash mounted to slide in the customary way in a wooden frame of standard or well known construction.

In the accompanying drawings, which illustrate the invention, like characters indicate like parts throughout the several views.

Referring to the drawings:

Fig. l is a fragmentary horizontal section showing portions of the window frame and sashes;

Fig. 2 is a fragmentary perspective of the parting strip shown in Fig. 1;

Fig. 3 is a fragmentary perspective of one of the weather strips shown in Fig. 1;

Fig. 4 is a diagrammatic view in elevation, showmg the extent to which the weather' strips of the upper and lower sashes over-' lap when the upper sash is'rais ed andlh'e lower sash is lowered 'to closed positions;

Fig. 5 is a fragmentary"horizontal section illustrating a modified construction and application of theweather strip and associated channel; 1

Fig. Y 6 is a fragmentary perspective-"of the channel shown in Fig. 5; and

Fig. 7 is a fragmentary perspective of strip 9, which latter, as is customary, is

made readily removable by means of screws or nails. The upper andouter sash is indi' cated by the numeral 10 and the lower and. inner sash by the numeral 10?. In the application of my invention, the parting strip. sdmetimes called the central stop strip, of

the window frame structure is in the form of a metallic channel bar 11' preferably bent from sheet metal and having parallel sides. This metallic parting strip is set into a groove formed-in the main plateof the window frame and is detachably anchored thereto, preferably by screws 12.- This parting stri will preferably be run from the 1 top: to t e bottom of. the window frame and,of:

course, therewill be one on each side-of the window frame. The weather strips, which are applied to the sashes, are also preferably made of sheet metal and they are bent to form laterally projecting anchoring flanges 13 and substantially rectangular folds 14. These folds 14 are thus provided with parallel flat portions 14 and 14', between which the co-operating flanges of the parting strip 11 are engaged with sufficient friction to insure very tight' joints. The anchoring flanges 13 are attached to the respective sashes by nails or screws 15, so that the rectangular folds 14 lie very close to the opposing faces of the two sashes. The weather strips just described are preferably made the full length of the respective sashes, so that they .will overlap, substantially as indicated in Fig. 4, when the upper sash is raised and the lower sash is lowered to extreme closed positions. This maintains the rectangular folds of the two weather strips always in overlapped relation and causes the one to yielding y react against the other, thereby insuring good spring contacts between the respective folds and the co-operating flanges of the channel-shaped parting strip. i

In some instances, the space between an upper and lower sash is not suflicient to permit the application of the weather strips between the same, as in the case of mosthollow metal sashes, and in such case the weather strip may be applied as shown in'Fig. 5; In this arrangement, the window frame is indicated by the numeral 8*, the inside stop strip by the numeral 9 and is located paralid and close to the adjacent face of the sash. The co-operatin stop strip is bent to form an anchoring flange 18, a flat fold- 19, and an inverted rectangular fold 20.

The fold 19 engages and works slidably onv e of the channel 16, while the adjacent flan the inverted fol 20 works withfrictional engagement against the interior of said channel. The anchoring flange 18 is, by screws 21 or the like, attached to the sash so that it moves vertically therewith.

I strip illustrated in Figs. 5 and 7 is a modification of that illustrated in Figs. 1, 2 and 3, but it should be noted that one of the said stripsshown in Figs. 2 and 3 may be used also in connection with the The window channel 16 shown in Fig. 5.

What I claim is: 1. The combination with a window frame and upper and lower sashes slidably mount ed therein, of a parting strip in the form of a metallic channel secured to said frame between said sashes, and metallic weather strips secured. to the respective sashes and formedwith rectangular folds that embrace the adjacent flanges of said channel,

the said folds being approximately rectangular in cross section and being formed so that the one will slide in frictional contact with the other.

ed therein,

2. The combination with a window frame and upperand lower sashes slidably mountof, a parting strip in the form of a metallic channel secured to said frame between said sashes, and metallic weather strips secured to the respectivesashes and formed with J folds that are approximately rectangular 1n cross section, the said folds having overlapped parallel portions that frictionally en age the inner' and outer sides of the" ad acent flanges of said channel, the folds of the two weather-strips being overlapped so that they slide in frictional engagement when either sash is moved in respect to the other.

Thecombination' with a window frame I and upper and lower sashes slidably mounted therein, of a parting strip in the form ofa metallic channel partly set into and secured to said frame with its flanges prodow frame, of a weather strip adapted to be applied to a sash, said weather strip being bent to form a three-ply fold having sliding frictional contact with the flange of said parting strip, that part of the fold that is remote from the anchored side of the weather strip comprising two plies, the inner of which is inwardly bent and is in direct frictional contact with the'flange of said parting strip.

In testimony whereof I aflix my signature. FRANK REESE.

parallel flat por-' 

